Lot of people use their mobile phone to text at night, read ebooks, scroll news feed to kill time. Most of them keep their brightness low. Inspite of that, the low brightness is high at night dark. The brightness option available does not allow the brightness to become too low. Some phones may have this option but not everyphone. You need to download a separate application for keeping the brightness low than the stock level. You need to download an app Night mode, Night Owl, etc. So the problem is when you download any app from playstore, most of them have ads in it, and will also high be high in memory.
The app I'm recommending is around 100KB only. It doesn't have ads in it, Simple UI. You can low brightness 80% from the stock low level. The main feature is you need not open the app to activate the night mode, one click on the app activates this. When you click the app icon, it doesn't open the app, it activates the night mode option. In most of the apps you need to open the app, see an and then activate. Orelse for a quicker activation, you need to place a widget in home screen. These are complicated. This simple app I'm recommending will do all the functions, even it has the colour filter option. You can choose multiple colours.
The app is Darker (Screen filter). It is available in playstore. See the screenshot for the configuration.
Now you'll enter into configuration screen.
Adjust the brightness to your required level, but you can't go below 20%. You'll need pro version to do that. Enable color filter option is used to mix the color with the normal screen.
